WO2014101117A1

WO2014101117A1 - Data storage method and storage device

Info

Publication number: WO2014101117A1
Application number: PCT/CN2012/087857
Authority: WO
Inventors: 李小华
Original assignee: 华为技术有限公司
Priority date: 2012-12-28
Filing date: 2012-12-28
Publication date: 2014-07-03
Also published as: CN103250143A; US8838892B2; CN103250143B; CA2893286A1; AU2012398220A1; EP2767880A1; AU2012398220B2; CA2893286C; US20140189236A1; EP2767880A4; JP2016506578A; JP6138275B2

Abstract

An embodiment of the present invention provides a data storage method, comprising: sending a performance information request message to a storage device, the performance information request message being used for querying performance information of a logic storage unit LUN in the storage device; receiving a response message of the performance information request message sent by the storage device, the response message comprising the performance information of the LUN; and obtaining a performance level of the LUN according to the performance information of the LUN, so as to write data to be written into the LUN of the corresponding performance level after receiving a data write instruction and according to the degree of hotness of the data to be written contained in the data write instruction. Therefore, LUN-level hierarchical storage can be achieved.

Description

Data storage method and storage device

Technical field

The present invention relates to storage technologies, and in particular, to a data storage method and a storage device. BACKGROUND In a storage system, different services have different demand models for storage performance, and the same data needs different service access performance models at different times. Therefore, it is urgent to implement storage media with different performances according to service access. The requirements enable adaptive allocation.

In the prior art, the storage system is hierarchically managed according to different storage media, for example, Solid State Drive (SSD) is a primary storage; Serial Attached SCSI (SAS) or Fibre Channel (Fibre Channel) , FC) Hard Disk Drive (HDD) is a secondary storage, where SCSI (Small Computer System Interface) is the English abbreviation for minicomputer system interface; Serial Advanced Technology Attachment (S ATA) or near Line ( Near Line, NL) Serial Attached SCSI (SAS) HDD is a three-level storage. During the running of the system, the storage space of high performance requirements can be provided by the primary storage, the secondary storage provides the storage space of common performance requirements, and the tertiary storage provides the storage space with low performance requirements. As the business model of data access changes, the storage device dynamically migrates data between different media, moving the hotspot data to the high-performance media, and the non-hotspot data to the lower performance media. Hierarchical storage in hard disk management mode. However, in existing storage systems, you can only rely on the storage administrator to specify the performance level of the corresponding storage space. Although this solves the performance identification problem of the LUN to a certain extent, it helps the system to implement hierarchical storage, but it needs to be implemented according to the prior designation of the storage administrator. Summary of the invention

The embodiment of the invention provides a data storage method, a storage space management device and a storage device, which can implement hierarchical storage at the LUN level.

In a first aspect, an embodiment of the present invention provides a data storage method, including:

Sending a performance information request message to the storage device, where the performance information request message is used to query performance information of the logical storage unit LUN in the storage device;

Receiving a response message of the performance information request message sent by the storage device, where the response message includes performance information of the LUN;

Obtaining a performance level of the LUN according to the performance information of the LUN, when the data write instruction is received, according to the degree of cold and heat of the data to be written included in the write data instruction, the to-be-written Data is written to the LUN of the corresponding performance level.

In a first possible implementation manner of the first aspect, the performance information request message includes a global name WWN field, where the WWN field is used to identify the LUN;

The response message of the performance information request message includes a list LUN List field of the logical storage unit, so that the performance information of the LUN is carried by the LUN List field.

With reference to the first possible implementation of the first aspect, in a second possible implementation manner of the first aspect, the WWN field in the performance information request message is all zeros, and is used to query all the storage devices. LUN performance information;

The LUN List field in the response message of the performance information request message includes the WWN of each LUN in the storage device and the performance information of each LUN, and the performance information of each LUN includes the performance value of each LUN. Interval.

With reference to the first possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the WWN field in the performance information request message is a WWN of the LUN, and is used to query the storage. Performance information of at least one LUN in the device;

The LUN List field in the response message of the performance information request message includes each of the The performance information of each LUN of the LUN includes the WWN of the LUN and the performance information of each of the LUNs.

In a second aspect, an embodiment of the present invention provides a data storage method, including:

Receiving a performance information request message sent by the storage space management device, where the performance information request message is used to query performance information of the logical storage unit LUN in the storage device;

Obtaining performance information of the LUN according to the performance information request message;

Sending the response message of the performance information request message to the storage space management device, where the response message of the performance information request message includes performance information of the LUN; and the storage space management device obtains the performance information of the LUN according to the performance information of the LUN. The performance level of the LUN is used to write the data to be written into the LUN of the corresponding performance level according to the degree of coldness and heat of the data to be written included in the write data instruction when receiving the write data instruction .

In a first possible implementation manner of the second aspect, the performance information request message includes a global name WWN field, where the WWN field is used to identify the LUN;

With reference to the first possible implementation of the second aspect, in a second possible implementation manner of the second aspect, the WWN field in the performance information request message is all zeros, and is used to query all the storage devices. LUN performance information;

In conjunction with the first possible implementation of the second aspect, in a third possible implementation of the second aspect,

The WWN field in the performance information request message is a WWN of the LUN, and is used to query performance information of at least one LUN in the storage device.

In a third aspect, the embodiment of the present invention provides a storage space management device, including: a sending module, configured to send a performance information request message to a storage device, where the performance information request message is used to query a logical storage unit LUN in the storage device Performance information;

a receiving module, configured to receive a response message of the performance information request message sent by the storage device, where the response message includes performance information of the LUN;

An obtaining module, configured to obtain, according to the performance information of the LUN, a performance level of the LUN, when the data write instruction is received, according to the hot and cold degree of the data to be written included in the write data instruction, The data to be written is written into a LUN of a corresponding performance level.

In a first possible implementation manner of the third aspect, the performance information request message includes a global name WWN field, where the WWN field is used to identify the LUN;

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the WWN field in the performance information request message is all zeros, and is used to query the storage device. Performance information of all LUNs;

With reference to the first possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the WWN field in the performance information request message is a WWN of the LUN, and is used to query the Performance information of at least one LUN in the storage device;

The LUN List field in the response message of the performance information request message includes each of the

The performance information of each LUN of the LUN includes the WWN of the LUN and the performance information of each of the LUNs. In a fourth aspect, an embodiment of the present invention provides a storage device, including:

a receiving module, configured to receive a performance information request message sent by the storage space management device, where the performance information request message is used to query performance information of a logical storage unit LUN in the storage device; and a calculation module, configured to request according to the performance information a message, the performance information of the LUN is obtained; the sending module is configured to send a response message of the performance information request message to the storage space management device, where the response message of the performance information request message includes performance information of the LUN; such that the storage management device to obtain information of the LUN according to the performance level of performance other LUN ¹ J, for the write data upon receiving the instruction, the write data according to the write data command to be included in the The degree of heat and cold writes the data to be written into the LUN of the corresponding performance level.

In a first possible implementation manner of the fourth aspect, the performance information request message includes a global name WWN field, where the WWN field is used to identify the LUN;

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the WWN field in the performance information request message is all zeros, and is used to query the storage device. Performance information of all LUNs;

With reference to the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the WWN field in the performance information request message is a WWN of the LUN, and is used to query the Performance information of at least one LUN in the storage device;

The performance information of the LUN and the performance information of each of the LUNs, and the performance information of each of the LUNs includes an interval of performance values of each of the LUNs.

According to a fifth aspect, an embodiment of the present invention provides a storage system, including the foregoing third aspect. The storage space management device and the storage device provided by the fourth aspect.

In a sixth aspect, an embodiment of the present invention provides a storage space management device, including: a processor, a communication interface, and a communication bus;

The processor and the communication interface communicate through the communication bus; the processor is configured to send a performance information request message to the storage device, where the performance information request message is used to query logic in the storage device The performance information of the LUN is received; the response message of the performance information request message sent by the storage device is received, the response message includes the performance information of the LUN, and the performance level of the LUN is obtained according to the performance information of the LUN. And when the data write instruction is received, the data to be written is written into the LUN of the corresponding performance level according to the degree of coldness and heat of the data to be written included in the write data instruction.

In a first possible implementation manner of the sixth aspect, the performance information request message includes a global name WWN field, where the WWN field is used to identify the LUN;

In conjunction with the first possible implementation of the sixth aspect, in a second possible implementation manner of the sixth aspect,

The WWN field in the performance information request message is all zeros, and is used to query performance information of all LUNs in the storage device.

In conjunction with the first possible implementation of the sixth aspect, in a third possible implementation of the sixth aspect,

A seventh aspect of the present invention provides a storage device, including: a processor, a communication interface, and a communication bus;

The processor and the communication interface communicate through the communication bus; the processor is configured to receive a performance information request message sent by the storage space management device, where the performance information request message is used to query the storage device. The performance information of the logical storage unit LUN; the performance information of the LUN is obtained according to the performance information request message; the response message of the performance information request message is sent to the storage space management device, and the response of the performance information request message The message includes the performance information of the LUN, and the storage space management device obtains the performance level of the LUN according to the performance information of the LUN, and is used according to the write data instruction when receiving the write data instruction. The degree of cold and heat of the data to be written writes the data to be written into the LUN of the corresponding performance level.

In a first possible implementation manner of the seventh aspect, the performance information request message includes a global name WWN field, where the WWN field is used to identify the LUN;

In conjunction with the first possible implementation of the seventh aspect, in a second possible implementation of the seventh aspect,

In conjunction with the first possible implementation of the seventh aspect, in a third possible implementation manner of the seventh aspect, The WWN field in the performance information request message is a WWN of the LUN, and is used to query performance information of at least one LUN in the storage device.

The LUN List field in the response message of the performance information request message includes the WWN of each of the LUNs and the performance information of each of the LUNs, and the performance information of each of the LUNs includes the performance value of each of the LUNs. Interval.

In the embodiment of the present invention, the storage space management device obtains the performance level of the LUN through the performance information by querying the storage device for the performance information of the LUN that it contains. Therefore, the embodiment of the present invention can obtain the performance level of the LUN without relying on the prior designation of the storage administrator. Therefore, when the write data command is received and the data needs to be written to the storage device, the storage space management device can write the data to be written into the LUN of different performance levels according to the hot and cold degree of the data to be written, thereby implementing the LUN. Hierarchical storage of levels.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a schematic diagram of an application network architecture of a data storage method according to an embodiment of the present invention; FIG. 2A is a flowchart of a data storage method according to an embodiment of the present invention;

2B is a flowchart of a data storage method according to an embodiment of the present invention;

2C is a signaling diagram of a data storage method according to an embodiment of the present invention;

3 is a schematic structural diagram of a storage space management device according to an embodiment of the present invention; FIG. 4 is a schematic structural diagram of a storage device according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a storage system according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of still another storage space management device according to an embodiment of the present invention; FIG. 7 is a schematic structural diagram of still another storage device according to an embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The data backup method provided by the embodiment of the present invention can be implemented on a storage system. FIG. 1 is a schematic diagram of a system architecture of a data backup method according to an embodiment of the present invention. As shown in FIG. 1, the storage system includes a host, a storage space management device, and a storage device.

The host can include any computing device known in the art, such as servers, desktop computers, and the like. Inside the host, an operating system and other applications are installed.

The storage space management device may include a storage gateway device. The storage gateway device in the embodiment of the present invention refers to a storage gateway device with heterogeneous virtualization, and the storage gateway device with heterogeneous virtualization is an intermediate device between the host and the storage device. The complexity and the difference of different physical disks in the storage device are shielded by means of mapping or abstraction, so that users can perform unified management and resource scheduling on all storage devices.

The storage device may include storage devices known in the prior art, such as Redundant Arrays of Inexpensive Disks (RAID), Just a Bunch Of Disks (JBOD), Direct Access Storage Device (Direct Access Storage Device, DASD ) One or more interconnected disk drives, such as tape libraries, tape storage devices with one or more storage units.

It should be noted that, for most storage devices, the physical disk included in the storage device is not directly presented to the operating system, but the storage space provided by each physical disk is mapped into a logical area, that is, a logical storage unit ( Logical Unit Number, LUN ) for users to use. Therefore, the read and write operations of the operating system on the disk are actually operations performed at the LUN level. In addition, the operating system can also partition, format, and other operations on the LUN. As shown in FIG. 2A, a data storage method provided by an embodiment of the present invention may be a storage space management device.

S101 a: Send a performance information request message to the storage device, where the performance information request message is used to query performance information of the logical storage unit LUN in the storage device.

Optionally, the performance information request message may include a global name WWN field, and the LUNo is identified by the WWN field.

The WWN field in the performance information request message is all zeros, and is used to query the performance information of all the LUNs in the storage device. The WWN field in the performance information request message is the WWN of the LUN, and is used to query the storage device. Performance information for at least one LUN.

S102a: Receive a response message of the performance information request message sent by the storage device, where the response message includes performance information of the LUN.

Optionally, the response message may include a list LUN List field of the logical storage unit to carry performance information of the LUN through the LUN List field. Specifically, the LUN List field may include a WWN of each LUN and performance information of each LUN.

The performance information of a LUN includes but is not limited to the interval of the performance value of the LUN.

S103a: Obtain a performance level of the LUN according to performance information of the LUN, where, when receiving a write data instruction, according to a degree of hot and cold of data to be written included in the write data instruction, Write data is written to the LUN of the corresponding performance level.

In the embodiment of the present invention, the storage space management device obtains the performance level of the LUN through the performance information by querying the storage device for the performance information of the LUN that it contains. Therefore, the embodiment of the present invention can obtain the performance level of the LUN without relying on the prior designation of the storage administrator. When the data is written to the storage device, the storage space management device can write the data to be written into the LUN of different performance levels according to the hot and cold degree of the data to be written, thereby implementing the LUN. Hierarchical storage of levels.

As shown in FIG. 2B, a data storage method is provided by an embodiment of the present invention. The execution body of the method may be a storage device. SlOlb: Receives a performance information request message sent by the storage space management device, where the performance information request message is used to query performance information of the logical storage unit LUN in the storage device.

S102b: Obtain performance information of the LUN according to the performance information request message.

S103b: send, to the storage space management device, a response message of the performance information request message, where the response message of the performance information request message includes performance information of the LUN, so that the storage space management device is configured according to the LUN The performance information obtains the performance level of the LUN, and is used to write the to-be-written data into a corresponding performance level according to the degree of coldness and heat of the data to be written included in the write data instruction when receiving the write data instruction In the LUN.

For a specific performance information request message and a response message of the performance information request message, reference may be made to the description of the above embodiment.

In the embodiment of the present invention, after receiving the performance information of the LUN included in the storage space management device, the storage device obtains the performance information of the LUN included in the storage device and sends the performance information of the LUN to the storage space management device, so that the storage space management device The performance level of the LUN can be obtained based on the performance information. Therefore, the embodiment of the present invention can obtain the performance level of the LUN without relying on the prior specification of the storage administrator. Therefore, when the write data command is received and the data needs to be written to the storage device, the storage space management device can write the data to be written into the LUN of different performance levels according to the hot and cold degree of the data to be written, thereby implementing the LUN. Hierarchical storage of levels. The following takes the performance information of the LUN as the interval of the performance value of the LUN as an example to describe a data storage method in detail.

Referring to FIG. 2C, FIG. 2C is a signaling diagram of a data storage method according to an embodiment of the present invention. As shown in FIG. 2C, the embodiment provides a data storage method, which may be based on an address to be written. Access frequency, tiered storage at the LUN level. The method can include the following steps:

S201: The storage space management device sends a performance information request message to the storage device, where the performance information request message is used to query the performance information of the logical storage unit LUN; and the performance information of the LUN is an interval of the performance value of the LUN. The performance information request message may be defined as a REPORT LUN CACPABILITY, which includes a World Wide Name (WWN) field of the LUN. The field is used to identify the LUN, and the WWN of each LUN is different.

In the embodiment of the present invention, the sending the performance information request message to the storage device may be: sending a performance information request message to the storage device, where the performance information request message is used to query performance information of all LUNs in the storage device. The WWN field of the LUN in the performance information request message is all zeros. The performance information request message may be sent to at least one LUN in the storage device, and each of the performance information request messages is used to query the storage device. The performance information of the LUN in the performance information request message is the WWN of the LUN to be queried.

S202: The storage device obtains a range of performance values of the LUN according to a WWN field of the LUN that is included in the performance information request message.

Specifically, after receiving the performance information request message sent by the storage space management device, the storage device may find the LUN according to the WWN of the LUN, so as to obtain related information of the LUN. The information may include, but is not limited to, the type of the storage medium of the physical disk corresponding to the LUN. Because a LUN is a logical area, it is mapped by a physical disk. Therefore, the type of storage media of the physical disk corresponding to the LUN can determine the performance of the LUN. For example, the performance of the SSD is higher than that of the SAS/FC HDD. The performance of the SAS/FC HDD is higher than that of the S ATA/NL S AS HDD. The performance of the LUN corresponding to the SSD is higher than the performance of the LUN corresponding to the SAS/FC HDD. The performance of the LUN corresponding to the FC HDD is higher than that of the LUN corresponding to the SATA/NL SAS HDD.

Therefore, the storage device can obtain the performance value range of the LUN according to the information about the LUN. For example, the performance value of the LUN corresponding to the SSD is [80, 100], and the performance value of the LUN corresponding to the SAS/FC HDD is [60, 80]. The performance value of the LUN corresponding to the SATA/NL SAS HDD is [40, 60].

In addition, the storage device can obtain the interval of the performance value of the LUN according to other related information, for example, the 10 service pressure of the LUN, the current running status of the LUN, and the composition mode of the LUN. The storage device can derive the interval of the performance value of the LUN after comprehensively considering various factors. S203: The storage device sends a response message of the performance information request message to the storage space management device, where the response message includes a range of performance values of the LUN.

S203b: The storage space management device obtains the performance level of the LUN according to the interval of the performance value of the LUN.

The response message of the performance information request message includes a LUN List field to carry an interval of the performance value of the LUN through the LUN List field. For example, the LUN List field may include three sub-fields, one sub-field is the WWN of the LUN, the other sub-field is the upper limit of the performance value of the LUN, and the other sub-field is the lower limit of the performance value of the LUN.

In the embodiment of the present invention, if the performance information request message is used to query the performance level of all the LUNs in the storage device, the LUN List field in the response message of the performance information request message is in the storage device. The interval between the WWN of each LUN and the performance value of each LUN, so that the storage space management device can obtain the performance level of each LUN according to the interval of each performance value; if the performance information request message is used to query the storage device a performance level of the at least one LUN, where the LUN List field in the response message of the performance information request message includes a WWN of each LUN to be queried and a range of performance values of each LUN, so that the storage space management device can The interval of performance values obtains the performance level of the LUN. For example, the storage space management device can identify the performance level of the LUN according to the interval of the performance value of the LUN. For example, the performance level of the LUN corresponding to the SSD can be one level (the performance value of the corresponding LUN is [80, 100]), SAS/ The performance level of the LUN corresponding to the FC HDD can be the second level (the performance value of the corresponding LUN is [60, 80]). The performance level of the LUN corresponding to the SATA/NL SAS HDD can be three (the performance value of the corresponding LUN is [40,60] ).

S204: When the storage space management device receives the write data instruction, according to the performance level of the LUN and the degree of hot and cold of the data to be written included in the write data instruction, the to-be-written in the write data instruction is included. Data is written to the LUN of the corresponding performance level.

In the application scenario of the embodiment of the present invention (as shown in FIG. 1), the storage system is composed of a host, a storage space management device, and a storage device. Because the storage space management device in the embodiment of the present invention is A storage gateway device with heterogeneous virtualization, which shields the complexity and difference of different physical disks in the storage device through mapping or abstraction. Therefore, the host can only see the storage space management device itself. The storage device is for the host. It is transparent.

The write data instruction is sent by the application in the host to the storage space management device, where the write data instruction includes the data to be written and the address to be written, although the data to be written is finally written into the storage device, but the host Only the storage space management device can be seen, so the address to be written when the application sends the data write command is the address in the LUN to be written to the storage space management device. After the storage space management device receives the write data command, the device to be written is written into the LUN of the corresponding level of the storage device according to the degree of coldness and heat of the data to be written.

Specifically, the storage space management device may determine the degree of hot and cold of the data to be written according to the access frequency of the address to be written in the write data instruction, if the access frequency of the to-be-written address is higher than a preset The predetermined hot data threshold may determine that the to-be-written data is hot data; if the access frequency of the to-be-written address is lower than a preset cold data threshold, it may be determined that the to-be-written data is cold data;

Then, the data to be written is written into the LUN of the corresponding performance level of the storage device according to the degree of coldness of the data to be written and the performance level of the LUN. Specifically, when executing the write data instruction, the hot data is written into the LUN with the performance level of one level (the corresponding performance value is [80, 100]); the cold data is written to the LUN with the performance level of three (corresponding to The performance value is [40,60]); the data to be written that is neither hot data nor cold data is written to the LUN with a performance level of 2 (corresponding performance value is [60,80]).

It should be noted that the address to be written to determine the degree of hot and cold of the data to be written and the address of the LUN to be written to the data to be written are different addresses, and the former is the storage seen by the application of the host. The address of the LUN of the space management device, which is the address of the LUN in the storage device. The storage space management device itself may not contain LUNs. A storage device may map a LUN for use by the storage space management device. However, the two addresses may still be different addresses.

More specifically, you can save the file to be written in the form of a mapping table in the storage space management device. Correspondence between the degree of hot and cold of the data and the performance level of the LUN. When the write data command is received, the LUN can be learned by writing the mapping table. It should be noted that the embodiment of the present invention is not limited to the form of a mapping table, and the other is used to preserve the degree of hot and cold of the data to be written.

The form of the correspondence between the performance levels of the LUNs is within the protection scope of the embodiment of the present invention. After the data to be written in the write data instruction is written to the LUN of the corresponding performance level of the storage device, the storage space management device may establish a mapping relationship between the application that issues the write data instruction and the LUN. When the read data instruction that receives the application is required to read the data to be written, the address of the LUN in the storage device storing the data to be written may be found according to the mapping relationship. The write data is read out.

In the embodiment of the present invention, the performance of the LUN is obtained by querying the performance information of the LUN that is included in the storage device, and the performance level of the LUN is obtained by using the performance information. Therefore, the embodiment of the present invention can obtain the performance of the LUN without relying on the prior specification of the storage administrator. level. Therefore, when the write data command is received and the data needs to be written to the storage device, the storage space management device can write the data to be written into the LUN of different performance levels according to the hot and cold degree of the data to be written, thereby implementing the LUN. Hierarchical storage of levels.

In the above embodiment, obtaining the performance level of the LUN according to the performance information of the LUN specifically includes: performing a performance level label on the LUN according to the interval of the performance value of the LUN included in the response message, by using the The performance level label identifies the performance level of the LUN. For example, you can put a LUN with a performance value of [80,100] on the performance level label, and a LUN with a performance value of [60,80] on the second-level performance level label. The performance value is [40,60]. The LUN is tagged with a three-level performance level. In another embodiment of the present invention, the performance information request message may further include a select report field, where the select report field indicates whether to query all the LUNs of the storage device or the performance level of a certain LUN. When the performance information request message is used to query the performance level of a LUN in the storage device, the select report is 01, when the performance information is When the request message is used to query the performance level of all the LUNs in the storage device, the select report is 00.

The response message of the performance information request message further includes a list length LUN List Length field of the logical storage unit, and the LUN List Length field indicates the length of the LUN List field. According to the foregoing embodiment, if the performance information request message is used to query the performance level of a LUN in the storage device, the LUN List field in the response message of the performance information request message includes the WWN of the LUN and the The interval of the performance value of the LUN. At this time, the LUN List Length field is 8, indicating that the LUN List field has 8 bytes. Specifically, the first 4 bytes are the WWN of the LUN, and the 5-6th word. The upper limit value of the performance value of the LUN, the seventh to eighth bytes are the lower limit value of the performance value of the LUN; and the performance information request message is used to query all the LUNs in the storage device. The LUN List field in the response message of the performance information request message is the interval of the WWN of each LUN in the storage device and the performance value of each LUN. At this time, the LUN List Length field is Multiply the number of LUNs in the storage device by 8.

In addition, the performance information request message may further include an operation code field and other reserved fields. The operation code field is used to identify the operation type of the performance information request message, such as a management operation, or a read operation, a write operation, and the like.

It can be understood that the performance information request message and the response message of the performance information request message may further include some reserved fields. In another embodiment of the present invention, the storage resource pool is a logical storage space, which is mapped by each LUN.

The storage space management device may include the LUNs of the same performance level in the storage resource pool of the corresponding performance level according to the performance level of the LUN, where each storage resource pool includes at least two LUNs of the same performance level;

Specifically, according to the foregoing embodiment, the LUNs can be divided into different performance levels, and the LUNs of the same performance level can be mapped into the corresponding storage resource pool. For example, the same performance level The LUN of the first level is included in the storage resource pool with the performance level of one level, and the performance level is the same as the second level.

A LUN is included in a storage resource pool with a performance level of two. Each storage resource pool includes at least two LUNs of the same performance level.

At this time, when receiving the write data instruction, the S204 writes the to-be-written data to the corresponding performance level according to the performance level of the LUN and the degree of cold and heat of the data to be written included in the write data instruction. The LUN is specifically: when the write data instruction is received, the data to be written is written according to the performance level of the LUN and the degree of hot and cold of the data to be written included in the write data instruction. The performance level of the storage resource pool is included in the LUN. After the data to be written in the write data instruction is written into the storage resource pool of the corresponding performance level, the mapping relationship between the application that issues the write data instruction and the storage resource pool is established, so that the application can send the read data afterwards. The instruction reads the data in the storage resource pool.

In the above embodiment, when the data to be written in the write data instruction is written to the LUN, the mapping relationship between the application and the LUN that issues the write data instruction is required to be established, so if the performance level of a subsequent LUN is lowered When receiving the write data command, the data to be written needs to be written into the LUN of the corresponding performance level, and the mapping relationship between the application and the original LUN needs to be deleted, and the new LUN of the corresponding performance level is re-established. Mapping relations. In the embodiment of the present invention, the LUNs of the same performance level are included in the storage resource pool of the corresponding performance level. If the performance level of one of the LUNs in the storage resource pool is lowered, the storage may be written when receiving the write data instruction. Other performance levels in the resource pool have not changed in the LUN. Since the data to be written is still written into the storage resource pool, there is no need to reconstruct a new mapping relationship.

In another embodiment of the present invention, the following steps may also be included:

The storage space management device sends a storage space scan request to the storage device; the scan request is used to obtain related information of the LUN in the storage device. After the storage space management device receives the information about all the LUNs included in the storage device that is sent by the storage device, the LUNs that do not have access to the storage space may be processed according to the information of all the LUNs to process all the LUNs. The LUN is connected to the storage space. Specifically, the storage device may send a list of LUNs to the storage space management device, where the number of LUNs included in the storage device, the LUNs that have accessed the storage space, and which LUNs have not yet accessed the storage space (ie, unavailable). In addition, information such as the size of each LUN can also be known.

After obtaining the information about the LUN, the storage space management device can parse the information, learn the number of LUNs included in the storage device, format the LUN that has not been connected to the storage space, or perform other processing. Successful access to storage space. By sending a storage space scan request to the storage device, the information about all the LUNs included in the storage device is obtained, and the LUNs that have not yet accessed the storage space are formatted, so that the LUN can successfully access the storage space. All LUNs in the storage device are managed in a unified manner, and subsequent LUN performance levels can be identified.

In still another embodiment of the present invention, the method may further include:

Step 205: The storage space management device monitors the processing time of the processing device to process the input/output 10 command, and determines whether the processing time exceeds a threshold defined by a performance level of the LUN corresponding to the 10 command.

In the embodiment of the present invention, the 10 command has its corresponding LUN. For example, the read request command is required to read data from a certain LUN, and the write request command is required to write data to a certain LUN, and according to the above embodiment, each of the commands is known. Each LUN has its own performance level. You can set a threshold for the performance level defined for the LUNs of different performance levels in advance. By monitoring the processing time of the 10 command in real time, it is determined whether the processing time exceeds the threshold defined by the performance level of the LUN corresponding to the 10 command.

S206: The storage space management device sends a performance information request message to the storage device when the processing time exceeds a threshold defined by a performance level of the LUN corresponding to the command.

The specific content of the performance information request message is similar to the foregoing, and details are not described herein again. It should be noted that the performance information request message is used to query the performance level of a certain LUN in the storage device.

In practical applications, the performance of the LUN may be due to 10 pressures, operating conditions, and system failures. When the processing time of the 10 command exceeds the threshold defined by the performance level of the LUN, it is necessary to re-query the performance of the LUN to the storage device.

S207: After receiving the performance information request message, the storage device may recalculate the current performance information of the LUN according to factors such as the current 10 pressure of the LUN, the running status, the system fault, and the storage medium of the physical disk corresponding to the LUN. Specifically, the current performance information of the LUN includes but is not limited to the current performance value interval of the LUN. The specific calculation method is similar to the previous one and will not be described here.

S208: The storage device sends a response message of the performance information request message to the storage space management device, where the response message of the performance information request message includes current performance information of the LUN, and the storage space management device performs current performance information according to the LUN. Obtain the current performance level of the LUN.

The specific content of the response message of the performance information request message is similar to the foregoing, and is not described here.

After receiving the current performance value range of the LUN returned by the storage device, the storage space management device may identify the current performance level of the LUN according to the performance value interval, and perform different processing according to whether the LUN performance level changes, specifically, when When the LUN performance level changes, adjust the performance level of the LUN. If the LUN has a corresponding storage resource pool, the LUN can be removed from the original storage resource pool.

When the performance level of the LUN is not changed, the storage space management device may send a query request for the credit value of the LUN to the storage device, and perform traffic according to the credit value of the LUN returned by the storage device. control.

In the embodiment of the present invention, the credit value of the LUN may refer to a difference between the number of read/write (I/O) operations per second of the LUN and the number of read/write (I/O) operations per second. For example, if the LUN can read and write (I/O) operations per second (Input/Output Operations Per Second, IOPS) is 100 times, the current number of read/write (I/O) operations per second, that is, the actual IOPS. It is 90 times, then its credit value is 10. The storage space management device can The LUN performs flow control.

The embodiment of the present invention monitors the processing time of the 10 commands in real time, so that the storage space management device can dynamically adjust the performance level of the LUN to ensure that the data to be written can be accurately stored in the LUNs of different performance levels according to the degree of hot and cold. .

In addition, the response message of the query request that the storage device sends the credit value to the storage space management device may further include an interval of the latest performance value of the LUN, so that the storage space management device may be according to the LUN. The current range of performance values gets the latest performance level for the LUN. The interval between the storage device and the storage space management device can be reduced by the interval in which the storage device actively reports the latest performance value of the LUN to the storage management device. Specifically, in addition to the original field, the response message of the query request may also include a LUN List field. The LUN List field is used to carry performance information of the LUN. For example, the LUN List field can include three sub-fields, one sub-field is the WWN of the LUN, the other sub-field is the upper limit of the performance value of the LUN, and the other sub-field is the lower limit of the performance value of the LUN. Optionally, the response message may further be a LUN List Length field, and the LUN List Length field may indicate a length of the LUN List field. Generally, when the response message contains the performance level of a LUN, the LUN List Length field is 8; when the response message contains the performance level of all the LUNs in the storage device, the LUN List Length field is the LUN of the storage device. Multiply the number by 8. In this case, the inquiry request of the credit value can be understood as the performance information request message of the foregoing embodiment.

In the embodiment of the present invention, the response message of the original query request is changed, so that the response message returns the current performance level of the LUN in the storage device when the credit value is returned, and the number of interactions between the storage space management device and the storage device can be reduced. . The embodiment of the present invention further provides a storage space management device. Specifically, please refer to FIG. 3, which is a schematic structural diagram of a storage space management device.

The storage space management device 30 includes: a sending module 301, a receiving module 302, and an acquiring Module 303; wherein:

The sending module 301 is configured to send a performance information request message to the storage device, where the performance information request message is used to query performance information of the logical storage unit LUN in the storage device.

Optionally, the performance information request message may include a global name WWN field, and the LUN is identified by the WWN field.

The receiving module 302 is configured to receive a response message of the performance information request message sent by the storage device, where the response message includes performance information of the LUN;

Acquisition module 303, for the cold when receiving a write data command, the write data according to the performance information obtained LUN LUN level of performance of the other ¹ J, according to the write data to be contained in the instruction The degree of heat is written into the LUN of the corresponding performance level.

The storage space management device 30 obtains the performance level of the LUN through the performance information by querying the storage device 40 for the performance information of the LUNs it contains. Therefore, the embodiment of the present invention can obtain the performance level of the LUN without relying on the prior designation of the storage administrator. Therefore, when the write data command is received and the data needs to be written to the storage device, the storage space management device 30 can write the data to be written into the LUN of different performance levels according to the degree of hot and cold of the data to be written. Hierarchical storage at the LUN level.

The following takes the performance information of the LUN as the interval of the performance value of the LUN as an example to describe a storage space management device in detail.

In the foregoing embodiment, the performance information request message sent by the sending module 301 to the storage device may be It is defined as REPORT LUN CACPABILITY, which contains the World Wide Name (WWN) field of the LUN. This field is used to identify the LUN. The WWN of each LUN is different.

In the embodiment of the present invention, the sending the performance information request message to the storage device may be: sending a performance information request message to the storage device, where the performance information request message is used to query performance information of all LUNs in the storage device. The WWN field of the LUN in the performance information request message is all zeros. The performance information request message may be sent to at least one LUN in the storage device, and each of the performance information request messages is used to query the storage. The performance information of a LUN in the device. The WWN field of the LUN in the performance information request message is the WWN of the LUN to be queried. In the foregoing embodiment, the receiving module 302 receives the interval of the performance value of the LUN in the response message of the performance information request message sent by the storage device, and then the obtaining module 303 is configured according to the performance value of the LUN. Obtain the performance level of the LUN.

The response message of the performance information request message may include a LUN List field of the logical storage unit to carry the interval of the performance value of the LUN through the LUN List field. For example, the LUN List field may include three subfields, one subfield is the WWN of the LUN, the other subfield is the upper limit of the performance value of the LUN, and the other subfield is the lower limit of the performance value of the LUN.

In the embodiment of the present invention, if the performance information request message is used to query the performance level of all the LUNs in the storage device, the LUN List field in the response message of the performance information request message is in the storage device. The interval between the WWN of each LUN and the performance value of each LUN, so that the storage space management device can obtain the performance level of each LUN according to the interval of each performance value; if the performance information request message is used to query the storage device a performance level of the at least one LUN, where the LUN List field in the response message of the performance information request message includes a WWN of each LUN to be queried and a range of performance values of each LUN, so that the storage space management device can The interval of performance values obtains the performance level of the LUN. For example, the storage space management device can identify the performance level of the LUN according to the interval of the performance value of the LUN. For example, the performance level of the LUN corresponding to the SSD can be one level (the performance value of the corresponding LUN is [80, 100]), SAS/ FC The performance level of the LUN corresponding to the HDD can be two (the performance value of the corresponding LUN is [60, 80]), and the performance level of the LUN corresponding to the SATA/NL SAS HDD can be three (the performance value of the corresponding LUN is [ 40,60]). Specifically, the obtaining module 303 may apply a performance level label to the LUN according to the interval of the performance value of the LUN included in the response message, and identify the performance level of the LUN by using the performance level label. For example, you can put a LUN with a performance value of [80,100] on the performance level label, and a LUN with a performance value of [60,80] on the second-level performance level label. The performance value is [40,60]. The LUN is tagged with a three-level performance level.

When the storage space management device 30 receives the write data instruction, the data to be written included in the write data instruction is determined according to the performance level of the LUN and the degree of hot and cold of the data to be written included in the write data instruction. Write to the LUN of the corresponding performance level. In another embodiment of the present invention, the performance information request message may further include a select report field, where the select report field indicates whether to query all the LUNs of the storage device or the performance level of a certain LUN. When the performance information request message is used to query the performance level of a LUN in the storage device, the select report is 01, and when the performance information request message is used to query the performance level of all the LUNs in the storage device, The select report is 00.

The response message of the performance information request message further includes a list length LUN List Length field of the logical storage unit, and the LUN List Length field indicates the length of the LUN List field. According to the foregoing embodiment, if the performance information request message is used to query the performance level of a LUN in the storage device, the LUN List field in the response message of the performance information request message includes the WWN of the LUN and the The interval of the performance value of the LUN. At this time, the LUN List Length field is 8, indicating that the LUN List field has 8 bytes. Specifically, the first 4 bytes are the WWN of the LUN, and the 5-6th word. The upper limit value of the performance value of the LUN, the seventh to eighth bytes are the lower limit value of the performance value of the LUN; and the performance information request message is used to query all the LUNs in the storage device. The LUN List field in the response message of the performance information request message is the interval of the WWN of each LUN in the storage device and the performance value of each LUN. At this time, the LUN List Length field is Multiply the number of LUNs in the storage device by 8. In addition, the performance information request message may further include an operation code field and other reserved fields. The operation code field is used to identify the operation type of the performance information request message, such as a management operation, or a read operation, a write operation, and the like.

It can be understood that the performance information request message and the response message of the performance information request message may further include some reserved fields.

In another embodiment of the present invention, the storage space management device 30 can also be applied to a storage system that includes a storage resource pool. The storage resource pool is a logical storage space and is mapped by each LUN. The storage space management device further includes a storage resource pool inclusion module (not shown), configured to include the LUNs of the same performance level into the storage resource pool of the corresponding performance level according to the performance level of the LUN, where the storage resource pool Include at least two LUNs of the same performance level;

Specifically, according to the foregoing embodiment, the LUNs can be divided into different performance levels, and the LUNs of the same performance level can be mapped into the corresponding storage resource pool. For example, a LUN with a performance level of one level is included in a storage resource pool with a performance level of one level, and a LUN with a performance level of the same level is included in a storage resource pool with a performance level of two, each storage resource. The pool includes at least two LUNs of the same performance level.

When the storage space management device 30 receives the write data instruction, the data to be written is written according to the performance level of the LUN and the degree of cold and heat of the data to be written included in the write data instruction. The performance level of the storage resource pool is included in the LUN. After the data to be written in the write data instruction is written into the storage resource pool of the corresponding performance level, the mapping relationship between the application that issues the write data instruction and the storage resource pool is established, so that the application can send the read data afterwards. The instruction reads the data in the storage resource pool.

In the above embodiment, when the data to be written in the write data instruction is written to the LUN, the mapping relationship between the application and the LUN that issues the write data instruction is required to be established, so if the performance level of a subsequent LUN is lowered When receiving the write data command, the data to be written needs to be written into the LUN of the corresponding performance level. The mapping relationship between the application and the original LUN needs to be deleted, and the new LUN corresponding to the performance level needs to be re-established. Mapping relationship. In the embodiment of the present invention, The LUNs of the same performance level are included in the storage resource pool of the corresponding performance level. If the performance level of one of the LUNs in the storage resource pool is reduced, other performance levels that can be written to the storage resource pool do not occur when receiving the write data command. Changed in the LUN. Since the data to be written is still written into the storage resource pool, there is no need to reconstruct a new mapping relationship. In still another embodiment of the present invention, the storage space management device 30 may further include a monitoring module 304, configured to monitor a processing time of the storage device processing the input/output 10 command, and determine whether the processing time exceeds the 10 command. The threshold defined by the performance level of the corresponding LUN;

The sending module 301 is further configured to: when the processing time exceeds a threshold defined by a performance level of the LUN corresponding to the 10 command, send a performance information request message to the storage device; in actual application, the performance of the LUN If the processing time of the 10 command exceeds the threshold defined by the performance level of the LUN, it is necessary to re-query the performance information of the LUN to the storage device.

The specific content of the performance information request message is similar to the foregoing, and details are not described herein again. It should be noted that the performance information request message is used to query performance information of a certain LUN in the storage device.

The receiving module 302 is further configured to receive a response message of the performance information request message sent by the storage device;

After receiving the performance information request message, the storage device can recalculate the current performance information according to the current 10 pressure, running status, system fault, and storage medium of the physical disk corresponding to the LUN. Specifically, current performance information of the LUN includes but is not limited to The interval of the current performance value of the LUN. The specific calculation method is similar to the previous one, and will not be described here. The response message of the performance information request message includes an interval of the current performance value of the LUN, and the specific content is similar to the foregoing, and details are not described herein again.

The obtaining module 303 is further configured to obtain a current performance level of the LUN according to current performance information of the LUN.

The specific acquisition method is similar to the previous one, and will not be described here.

The storage space management device 30 may further include:

The determining module 305 is configured to identify the current performance level of the LUN according to the performance value interval, and determine whether the performance level of the LUN changes.

The adjustment module 306 is configured to remove the LUN from the original corresponding storage resource pool when the performance level of the LUN changes.

The storage space management device 30, after identifying the current performance level of the LUN, may perform different processing according to whether the performance level of the LUN changes. Specifically, when the performance level of the LUN changes, the performance level of the LUN is adjusted. If the LUN has a corresponding storage resource pool, the storage space management device 30 provided by the embodiment of the present invention may refer to the description of the storage space management device in the foregoing method, and details are not described herein.

The embodiment of the present invention further provides a storage device 40. Specifically, please refer to FIG. 4, which is a schematic structural diagram of the storage device 40.

The storage device 40 includes: a receiving module 401, a calculating module 402, and a sending module 403;

The receiving module 401 is configured to receive a performance information request message sent by the storage space management device, where the performance information request message is used to query performance information of the logical storage unit LUN in the storage device, and the calculating module 402 is configured to request the performance information according to the performance information. The message obtains performance information of the LUN.

a sending module 403, configured to send the performance information request to the storage space management device The response message of the performance information request message includes the performance information of the LUN; the storage space management device obtains the performance level of the LUN according to the performance information of the LUN, for receiving When the data instruction is written, the data to be written is written into the LUN of the corresponding performance level according to the degree of coldness and heat of the data to be written included in the write data instruction.

In the embodiment of the present invention, after receiving the performance information of the LUN that is included in the query, the storage device 40 obtains the performance information of the LUN that is included in the storage space management device 30 and sends the performance information of the LUN to the storage space management device 30 to make the storage space. The management device 30 can obtain the performance level of the LUN according to the performance information. Therefore, the embodiment of the present invention can obtain the performance level of the LUN without relying on the prior specification of the storage administrator. Therefore, when the write data command is received and the data needs to be written to the storage device 40, the storage space management device can write the data to be written into the LUN of different performance levels according to the degree of coldness and heat of the data to be written, thereby realizing Hierarchical storage at the LUN level. The following takes the performance information of the LUN as the interval of the performance value of the LUN as an example to describe a storage device in detail.

In the foregoing embodiment, the performance information request message may be defined as a REPORT LUN.

CACPABILITY, which contains the same fields as the embodiment shown in Figure 3, is not mentioned here. The response message of the performance information request message includes the same fields as the embodiment shown in FIG. 3, and details are not described herein again. The calculating module 402 is configured to obtain a range of performance values of the LUN according to the WWN field of the LUN that is included in the performance information request message.

Specifically, after receiving the performance information request message sent by the storage space management device 30, the storage device 40 may find the LUN according to the WWN of the LUN, so as to obtain related information of the LUN. The information may include, but is not limited to, the type of the storage medium of the physical disk corresponding to the LUN. Because a LUN is a logical area, it is mapped by a physical disk. Therefore, the type of storage media of the physical disk corresponding to the LUN can determine the performance of the LUN. For example, if the performance of the SSD is higher than that of the SAS/FC HDD and the performance of the S AS/FC HDD is higher than that of the S ATA/NL S AS HDD, the performance of the LUN corresponding to the SSD is higher than the performance of the LUN corresponding to the S AS/FC HDD. S AS/FC The performance of the LUN corresponding to the HDD is higher than that of the LUN corresponding to the SATA/NL SAS HDD. Therefore, the storage device 40 can obtain the performance level of the LUN according to the information about the LUN. For example, the performance level of the LUN can be expressed in the form of a performance value. For example, the performance value of the LUN corresponding to the SSD is [80]. , 100], the performance value of the LUN corresponding to the SAS/FC HDD is [60, 80], and the performance value of the LUN corresponding to the SATA/NL SAS HDD is [40, 60].

In addition, the storage device 40 can obtain the interval of the performance value of the LUN according to other related information, for example, the service pressure of the LUN, the current running status of the LUN, and the composition mode of the LUN. The storage device can derive the area of the performance value of the LUN after considering various factors.

The sending module 403 is specifically configured to send, to the storage space management device 30, a response message of the performance information request message, where the response message includes a range of performance values of the LUN, so that the storage space management device 30 is configured according to the The interval of the performance value of the LUN obtains the performance level of the LUN.

In another embodiment of the present invention, when the storage space management device 30 monitors the processing time of the storage device processing the input/output 10 command, when the processing time exceeds the threshold defined by the performance level of the LUN corresponding to the 10 command. The storage space management device 30 may send a performance information request message to the storage device 40 for querying the current performance level of the LUN.

Therefore, the receiving module 401 is further configured to receive the performance information request message sent by the storage space management device; the specific content of the performance information request message is similar to the foregoing, and details are not described herein. It should be noted that the performance information request message is used to query performance information of a certain LUN in the storage device.

The calculating module 402 is further configured to obtain current performance information of the LUN according to the information about the LUN that is included in the performance information request message. After receiving the performance information request message, the storage device may be based on the current 10 pressure of the LUN. The current performance information is recalculated by factors such as the running status, system fault, and the storage medium of the physical disk corresponding to the LUN. Specifically, the current performance information of the LUN includes, but is not limited to, a current performance value interval of the LUN. Specific calculation method and before The face is similar, and will not be repeated here.

The sending module 403 is further configured to send a response message of the performance information request message to the storage space management device 30, where the response message of the performance information request message includes current performance information of the LUN; The current performance level of the LUN is obtained according to the current performance information of the LUN.

The storage space management device 30, after identifying the current performance level of the LUN, may perform different processing according to whether the performance level of the LUN changes. Specifically, when the performance level of the LUN changes, the performance level of the LUN is adjusted. If the LUN has a corresponding storage resource pool, the storage device 40 provided by the embodiment of the present invention may be referred to the description of the storage device in the foregoing method embodiment, and details are not described herein again. The embodiment of the present invention further provides a storage system 50. As shown in FIG. 5, the storage system includes a storage space management device 30 and a storage device 40;

The storage space management device 30 is configured to send a performance information request message to the storage device 40, where the performance information request message is used to query performance information of the logical storage unit LUN in the storage device 40; The response message of the performance information request message, the response message includes performance information of the LUN; obtaining a performance level of the LUN according to the performance information of the LUN, when used to receive a write data instruction, according to And the degree of coldness and heat of the data to be written included in the write data instruction, and the data to be written is written into the LUN of the corresponding performance level.

The storage device 40 is configured to receive a performance information request message sent by the storage space management device 30, where the performance information request message is used to query performance information of a logical storage unit LUN in the storage device; according to the performance information request message, obtain The performance information of the LUN is sent to the storage space management device 30, and the response message of the performance information request message includes performance information of the LUN; 30 Obtaining a performance level of the LUN according to the performance information of the LUN, where the data to be written is to be written according to a degree of hot and cold of data to be written included in the write data instruction when receiving a write data instruction Write to the LUN of the corresponding performance level.

For a specific implementation of each module in the storage space management device 30, refer to the corresponding module in the embodiment shown in FIG. 3. For the specific implementation of each module in the storage device 40, refer to the corresponding module in the embodiment shown in FIG. This will not go into details. Referring to FIG. 6, an embodiment of the present invention provides a schematic diagram of a storage space management device 600. The storage space management device 600 may include a storage gateway device. The storage gateway device in the embodiment of the present invention refers to a storage gateway device having heterogeneous virtualization. The specific embodiment of the present invention does not limit the specific implementation of the storage space management device 600. The storage space management device 600 includes:

A processor 610, a communication interface 620, a memory 630, and a bus 640.

The processor 610, the communication interface 620, and the memory 630 complete communication with each other via the bus 640. The communication interface 620 is configured to communicate with a network element, such as the storage device 700.

The processor 610 is configured to execute the program 632.

In particular, program 632 can include program code, the program code including computer operating instructions.

Processor 610 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.

The memory 630 is configured to store the program 632. Memory 630 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.

The program 632 may specifically include:

The sending module 301 is configured to send a performance information request message to the storage device, where the performance information is The request message is used to query performance information of the logical storage unit LUN in the storage device;

The obtaining module 303 is configured to obtain, according to performance information of the LUN, a performance level of the LUN, and when used to receive a write data instruction, according to a degree of hot and cold of data to be written included in the write data instruction, The data to be written is written into a LUN of a corresponding performance level.

For the specific implementation of the modules in the program 632, refer to the corresponding modules in the embodiment shown in FIG. 3, and details are not described herein.

Referring to FIG. 7, an embodiment of the present invention provides a schematic diagram of a storage device 700. The storage device 700 may include storage devices known in the prior art, and the specific embodiments of the present invention do not limit the specific implementation of the storage device 700. Storage device 700 includes:

A processor 710, a communication interface 720, a memory 730, and a bus 740.

The processor 710, the communication interface 720, and the memory 730 complete communication with each other via the bus 740. The communication interface 720 is configured to communicate with a network element, such as the storage space management device 600.

The processor 710 is configured to execute the program 732.

In particular, program 732 can include program code, the program code including computer operating instructions.

The processor 710 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.

The memory 730 is configured to store the program 732. Memory 730 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.

The program 732 may specifically include:

The receiving module 401 is configured to receive a performance information request message sent by the storage space management device, where The performance information request message is used to query the performance information of the logical storage unit LUN in the storage device; the calculation module 402 is configured to obtain the performance information of the LUN according to the performance information request message;

a sending module 403, configured to send, to the storage space management device, a response message of the performance information request message, where the response message of the performance information request message includes performance information of the LUN, so that the storage space management device is configured according to the The performance information of the LUN is obtained by the performance level of the LUN, and is used to write the data to be written according to the degree of cold and heat of the data to be written included in the write data instruction when receiving the write data instruction. Corresponding to the performance level of the LUN.

For a specific implementation of each module in the program 732, reference may be made to the corresponding modules in the embodiment shown in FIG. 4, which is not described herein.

A person skilled in the art can clearly understand that, for the convenience and the cleaning of the description, the specific working process of the device and the module described above can be referred to the corresponding process description in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be another division manner, for example, multiple modules or components may be combined or Can be integrated into another device, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some communication interface, device or module, and may be electrical, mechanical or otherwise.

The modules described as separate components may or may not be physically separate, or may be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the objectives of the solution of the embodiment.

In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module. In the block.

Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

claims

1. A data storage method, characterized by including:

Send a performance information request message to the storage device, where the performance information request message is used to query the performance information of the logical storage unit LUN in the storage device;

Receive a response message of the performance information request message sent by the storage device, where the response message contains the performance information of the LUN;

Obtain the performance level of the LUN according to the performance information of the LUN, so that when receiving a write data instruction, according to the coldness and heat degree of the data to be written contained in the write data instruction, the to-be-written data is Data is written to the LUN corresponding to the performance level.

2. The method according to claim 1, wherein the performance information request message contains a global name WWN field, and the WWN field is used to identify the LUN;

The response message of the performance information request message includes a list of logical storage units, a LUN List field, so that the performance information of the LUN is carried through the LUN List field.

3. The method according to claim 2, characterized in that,

The WWN field in the performance information request message is all zeros, which is used to query the performance information of all LUNs in the storage device;

4. The method according to claim 2, characterized in that,

The WWN field in the performance information request message is the WWN of the LUN and is used to query the performance information of at least one LUN in the storage device;

The LUN List field in the response message of the performance information request message includes the WWN of each LUN and the performance information of each LUN, and the performance information of each LUN includes the performance value of each LUN. interval.

5. The method according to claim 3 or 4, characterized in that, according to the properties of the LUN Information that can be obtained about the performance level of the LUN specifically includes:

According to the range of the performance value of the LUN, a performance level label is placed on the LUN, and the performance level of the LUN is identified by the performance level label.

6. The method according to any one of claims 2 to 5, characterized in that the performance information request message also includes a selection report field, and the selection report field indicates querying all the storage devices.

LUN or performance information of a certain LUN;

When the performance information request message is used to query the performance information of all LUNs in the storage device, the selection report field is 00;

When the performance information request message is used to query the performance information of a certain LUN in the storage device, the selection report field is 01.

7. The method according to any one of claims 2 to 5, characterized in that the response message of the performance information request message also includes a LUN List Length field of the list length of the logical storage unit, and the LUN List Length field represents the The length of the LUN List field.

8. The method according to claim 1, characterized in that, the method further includes: according to the performance level of the LUN, including LUNs of the same performance level into a storage resource pool of a corresponding performance level, the storage resource pool Include at least two LUNs of the same performance level, for writing the data to be written according to the hotness and coldness of the data to be written contained in the write data instruction when receiving the write data instruction. LUNs included in the storage resource pool corresponding to the performance level.

9. The method according to claim 8, characterized in that, the method further includes: monitoring the processing time of the storage device to process the input and output 10 commands, and determining whether the processing time exceeds the LUN corresponding to the 10 commands. Thresholds defined by performance levels;

When the processing time exceeds the threshold defined by the performance level of the LUN corresponding to the 10 command, send a performance information request message to the storage device;

Receive a response message to the performance information request message sent by the storage device, where the response message to the performance information request message includes the current performance information of the LUN;

Obtain the current performance level of the LUN according to the current performance information of the LUN; Determine whether the performance level of the LUN has changed according to the current performance level of the LUN;

When the performance level of the LUN changes, the LUN is removed from the original corresponding storage resource pool.

10. The method according to claim 1, characterized in that, when receiving a write data instruction, the data to be written is converted according to the hot or cold degree of the data to be written contained in the write data instruction. Write to the LUN of the corresponding performance level, including:

When the write data instruction is received, the write data instruction includes the data to be written and the address to be written;

Determine the hot or cold degree of the data to be written based on the access frequency of the address to be written; write the data to be written according to the hot or cold degree of the data to be written and the performance level of the LUN in the LUN corresponding to the performance level.

11. A data storage method, characterized by including:

Receive a performance information request message sent by the storage space management device, where the performance information request message is used to query the performance information of the logical storage unit LUN in the storage device;

Obtain the performance information of the LUN according to the performance information request message;

Send a response message of the performance information request message to the storage space management device, where the response message of the performance information request message contains the performance information of the LUN; so that the storage space management device obtains the performance information based on the performance information of the LUN. The performance level of the LUN is used to write the data to be written into the LUN of the corresponding performance level according to the hotness and coldness of the data to be written contained in the write data command when receiving a write data instruction. .

12. The method according to claim 11, wherein the performance information request message contains a global name WWN field, and the WWN field is used to identify the LUN;

13. The method according to claim 12, characterized in that, The WWN field in the performance information request message is all zeros, which is used to query the performance information of all LUNs in the storage device;

14. The method according to claim 12, characterized in that,

15. The method according to claim 11 or 12, wherein the performance information request message further includes a selection report field, and the selection report field indicates whether to query the performance information of all LUNs of the storage device or a certain LUN. ;

16. The method according to claim 11 or 12, characterized in that the response message of the performance information request message further includes a LUN List Length field of the list length of the logical storage unit, and the LUN List Length field represents the LUN List The length of the field.

17. The method according to claim 11, characterized in that, the method further includes: receiving a performance information request message sent by the storage space management device;

Obtain the current performance information of the LUN according to the LUN information contained in the performance information request message;

sending a response message to the performance information request message to the storage space management device, The response message of the performance information request message contains the current performance information of the LUN, so that the storage space management device obtains the current performance level of the LUN based on the current performance information of the LUN.

18. A storage space management device, characterized by including:

A sending module, configured to send a performance information request message to the storage device, where the performance information request message is used to query the performance information of the logical storage unit LUN in the storage device;

A receiving module, configured to receive a response message to the performance information request message sent by the storage device, where the response message contains the performance information of the LUN;

Obtaining module, configured to obtain the performance level of the LUN according to the performance information of the LUN, so that when receiving a write data instruction, according to the hot and cold degree of the data to be written contained in the write data instruction, obtain The data to be written is written into the LUN of the corresponding performance level.

19. The device according to claim 18, characterized in that,

The performance information request message includes a global name WWN field, and the WWN field is used to identify the LUN;

20. The device according to claim 19, characterized in that,

21. The device according to claim 19, characterized in that,

The WWN of the LUN and the performance information of each LUN. The performance information of each LUN includes The range of performance values for each LUN.

22. The device according to claim 20 or 21, characterized in that the acquisition module is specifically configured to: label the LUN with a performance level label according to the range of the performance value of the LUN, and identify the LUN with the performance level label. Describes the performance level of the LUN.

23. The device according to any one of claims 18 to 22, further comprising a storage resource pool inclusion module, configured to incorporate LUNs of the same performance level into storage resources of corresponding performance levels according to the performance level of the LUN. In the pool, the storage resource pool includes at least two LUNs of the same performance level, so that when receiving the write data instruction, according to the hot and cold degree of the data to be written contained in the write data instruction, The data to be written is written into the LUN included in the storage resource pool of the corresponding performance level.

24. The device according to claim 23, further comprising:

The monitoring module is used to monitor the processing time of the storage device for processing the input and output 10 commands, and determines the sending module. When the processing time exceeds the threshold defined by the performance level of the LUN corresponding to the 10 command, Send a performance information request message to the storage device;

The receiving module is also configured to receive a response message of the performance information request message sent by the storage device. The response message of the performance information request message contains the current performance information of the LUN. The acquisition module is also configured to Obtain the current performance level of the LUN according to the current performance information of the LUN;

The storage space management device also includes:

A judgment module, used to judge whether the performance level of the LUN has changed based on the current performance level of the LUN;

The adjustment module is configured to remove the LUN from the original corresponding storage resource pool when the performance level of the LUN changes.

25. A storage device, characterized by including:

A receiving module, configured to receive a performance information request message sent by the storage space management device, where the performance information request message is used to query the performance information of the logical storage unit LUN in the storage device; a computing module, configured to request according to the performance information message to obtain the performance information of the LUN; a sending module, configured to send a response message to the performance information request message to the storage space management device, where the response message to the performance information request message contains the performance information of the LUN; The storage space management device is caused to obtain the performance ^level of the LUN based on the performance information of the LUN, so that when receiving a write data instruction, the storage space management device obtains the performance level of the LUN based on the data to be written contained in the write data instruction. According to the degree of hotness and coldness, the data to be written is written into the LUN of the corresponding performance level.

26. The device according to claim 25, characterized in that,

27. The device according to claim 26, characterized in that,

28. The device according to claim 26, characterized in that,

29. The device according to claim 28, characterized in that,

The receiving module is also configured to receive a performance information request message sent by the storage space management device;

The computing module is also configured to obtain the current performance information of the LUN based on the information of the LUN contained in the performance information request message;

The sending module is also configured to send a response message of the performance information request message to the storage space management device, where the response message of the performance information request message contains the current performance information of the LUN, so that the storage space management device The device obtains the current performance level of the LUN based on the current performance information of the LUN.

30. A storage system, characterized by comprising the storage space management device according to any one of claims 18-24 and the storage device according to any one of claims 25-29.

31. A storage space management device, characterized by including: a processor, a communication interface and a communication bus;

Wherein, the processor and the communication interface communicate through the communication bus; the processor is used to send a performance information request message to the storage device, and the performance information request message is used to query the logic in the storage device Performance information of the storage unit LUN; receiving a response message of the performance information request message sent by the storage device, where the response message contains the performance information of the LUN; obtaining the performance level of the LUN based on the performance information of the LUN , used to write the data to be written into the LUN of the corresponding performance level according to the hot or cold degree of the data to be written contained in the write data command when receiving the write data instruction.

32. The device according to claim 31, characterized in that,

The response message of the performance information request message includes a list of logical storage units, a LUN List field, so that the LUN List field carries the performance information of the LUN.

33. The device according to claim 32, characterized in that,

34. The device according to claim 32, characterized in that,

The WWN of the LUN and the performance information of each LUN. The performance information of each LUN includes the range of the performance value of each LUN.

35. The device according to claim 31 or 32, wherein when the processor obtains the performance level of the LUN based on the performance information of the LUN, it is specifically configured to: obtain the performance value of the LUN based on the performance value of the LUN. interval, label the LUN with a performance level label, and identify the performance level of the LUN through the performance level label.

36. A storage device, characterized in that it includes: a processor, a communication interface and a communication bus; wherein, the processor and the communication interface communicate through the communication bus; the processor is used to receive and store A performance information request message sent by the space management device. The performance information request message is used to query the performance information of the logical storage unit LUN in the storage device; according to the performance information request message, the performance information of the LUN is obtained; to the storage The space management device sends a response message to the performance information request message, and the response message to the performance information request message contains the performance information of the LUN; causing the storage space management device to obtain the performance information of the LUN based on the performance information of the LUN. The performance level is used to write the data to be written into the LUN of the corresponding performance level according to the hotness and coldness of the data to be written contained in the write data command when receiving a write data instruction.

37. The storage device according to claim 36, characterized in that,

38. The storage device according to claim 37, characterized in that,

39. The storage device according to claim 37, characterized in that,